*{
    padding: auto;
    margin: auto;
}
.div1{
    border: 2px solid red;
    width:100%;
    height:600px;
    margin-left: auto;
    margin-top: 100px;


}

div.div1{
    margin:0 auto;
    border:0px solid red;
    width:1200px;
    height:500px;
}
.div2{
    border: 0px solid red;
    width:600px;
    height:50px;
    margin-left: 220px;
    /*margin-top: 50px;*/


}
.div3{
    margin: 0 auto;
    border: 0px solid blue;
    width:400px;
    height: 40px;

    /*margin-top: 5px;*/
}